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Cross-roller guideway type R, RN and RNG with roller cages for a high load-bearing design

The roller bearings ensure implementation with the smallest installed dimensions and an enlarged freedom for design.

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Product information White Paper Downloads CAD data Application examples Product options Product movies FAQ

Productinformation Overview

Track and surface quality: Finely ground supporting and/or locating surfaces and tracks (90o V-profile) Materials (standard)
Rails made of through hardened tool steel 1.2842, hardness 58 – 62 HRC
For non-corrosive guideways tool steel 1.4034 and 1.4112 is used
Rolling element made of through hardened roller bearing steel, hardness 58 – 64 HRC
Rolling element: Roller
Speed: 1 m/s
Acceleration: 50 m/s2 - 300 m/s2 with cage control
RN linear guideways are available in three quality classes
Operating temperatures: -40°C to +80°C

Pushing the Limits. New KCN / KCS cage for Linear bearing type RN and RNG

The RN linear guideway represents the next evolution of precision cross-roller systems.
Through optimized contact geometry and advanced cage control, these guides deliver up to theoretically 25% more load capacity and improved rigidity — without increasing external dimensions. Or your installation space could be reduced. Both depending on your construction.

The narrow rail gap minimizes contamination risks and allows for smooth, consistent motion, even under demanding dynamic loads.

Linear guideway with integrated cage control system type KCN or KCS for RN and RNG linear bearings are exchangeable with KBN or KBS cages.

Optional: Integrated Cage Control (Formula-S) for KBS, KCS cages

The robust, simple design of the FORMULA-S cage control, consists of only a few components and meets all requirements in terms of productivity and cost-effectiveness.

The sophisticated design means it can be easily integrated into existing constructions. FORMULA-S works in any installation orientation regardless of the preload of the guideway.

The FORMULA-S cage control system maintains cage position automatically, preventing cage creep even under high acceleration, vertical applications or temperature fluctuations.

The mechanism is compact, robust, and operates reliably in any mounting orientation — with minimal components for easy integration and cost-effective production.

Advantages of Integrated Cage Control

Trouble-free operation
High acceleration
No readjustment of the cage
Shape and position tolerances of the surrounding structure or temperature differences do not lead to cage creep

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Cage Versions

Cage Type	Description	Cage Control
KBN	Standard Cage	No
KBS	Standard Cage	Yes
KCN	New high-performance cage	No
KCS	New high-performance cage	Yes

Note: KCN and KCS are fully interchangeable with earlier models (KBN/KBS)

White Paper

White paper and technical briefs

Downloads / Product catalog

Product specific downloads

Linear bearings - Product catalog Linear bearings and recirculating unitsDownload now

Flyer KCS Download now

CAD data

CAD data for type RN for download:

The selected size can be configured and is available in all common data formats Please click on the appropriate size combination to start downloading.

By clicking on the following link you will be automatically redirected to CADENAS.

Open CAD data

Application examples

Microtome

Microtomes are precision cutting devices used to create extremely thin sections for microscopic examination such as biological tissues or plastics. These samples are often hardened by fixing and embedding in substances like paraffin or synthetic resin to make them sliceable.

Accurate linear guides are essential for applications requiring extraordinary smoothness and precision, as they meet the stringent demands placed on linear guideway systems. These guides ensure precise control and smooth movement, crucial for the high-performance operation of advanced mechanical systems.

Possible solutions:

Crossrollerbearings RN 4

Product Benefits:

High stiffness

Excellent running behavior

Microscopy / Biotechnology

A microscope is essential for pathologists, enabling detailed tissue analysis, cell examination, and other microscopic assessments. Its advanced optics provide clear visualization of intricate cellular structures, crucial for accurate medical diagnosis and research.

Accurate linear guides are essential for high-precision imaging. The high-rigidity scan table utilizes these systems for exact positioning, critical for consistent and reliable microscopic observations.

Similarly, the precise movement of optical components, facilitated by fine guides, ensures data integrity, crucial for detailed medical analysis and diagnosis.

Possible solutions:

Crossrollerbearings RN 4 with cage control

Product Benefits:

Very high position tolerance

No cage creeping

Product options

Configurable Options Tailored for Your Application

Cage Control System

The robust, simple design of the SCHNEEBERGER cage control, consists of only a few components and meets all requirements in terms of productivity and cost-effectiveness. It reliably prevents cage creep during frequent strokes, enabling smooth operation and long service life.

KCN/KCS guideways with maximum rigidity and precision

SCHNEEBERGER is known for its highest level of precision and develops and distributes products that are perfectly suited for this industrial segment. These are flexible in design, especially in situations where high load capacities and precise positioning are required in the tightest of spaces.

Coatings

For applications with increased requirements for corrosion protection, wear resistance, or in cases of insufficient lubrication, SCHNEEBERGER offers special coatings with increased surface hardness – ensuring maximum reliability and extended service life, even under demanding operating conditions

Quality classes (NQ, SQ and SSQ)

The running and positioning accuracy of an application depends primarily on the geometric precision of the guideway, its exact alignment, and the rigidity of the surrounding structure.
To optimally meet a wide range of requirements, SCHNEEBERGER offers linear guideways in three graduated quality classes. This ensures that the appropriate precision is available for every application – from economical standard to high-precision solutions.

Further Product Options

RF – Rust Ressistant
Fixing Holes – D, G, V, SB, SL, OS
Height Matched – HA
Run-ins rounded – EG
Special Packaging – SV/VA

Product movies

Pushing the Limits

High performance cage with cage control

FORMULA-S movie

FORMULA-S The SCHNEEBERGER cage assist offers perfect load distribution and prevents the need for cage correction strokes

High performance cage with cage control. Pushing the Limits.

What is the difference between the Type R, RN, and RNG cross-roller guides from SCHNEEBERGER?

The Type R, RN, and RNG cross-roller guides refer to different raceways, load capacities, and stiffness levels of the linear guides from Schneeberger:

R: The Type R cross-roller guide represents the standard linear guides, available in various sizes and designs. The cage of the cross-roller guide can be equipped with rollers or balls. The Type R cross-roller guide is designed for a wide range of applications.
RN: The Type RN cross-roller guide refers to linear guides designed for higher load capacities and offers the option of forced cage guidance. The RN cross-roller guide has the same external dimensions as the R cross-roller guide.
RNG: This designation refers to linear guides that cover the same configurations and options as the RN linear guides but have a smaller cross-section than the RN and R cross-roller guides

Which applications benefit most from SCHNEEBERGERs various R, RN, RNG products?

The various product families from Schneeberger Lineartechnik were developed to meet the requirements of a wide range of applications:

R linear guides are versatile and are used in a wide range of industries. Cages with balls and rollers are available for this type of linear guide.
RN linear guides offer higher rigidity and load capacity and are well-suited for machine tools and precision applications required in the semiconductor, measurement, and medical technology sectors.
RNG linear guides are used where compact installation space, lightweight design, high rigidity, and precision are all required.

How are cross-roller guides installed and maintained?

Installation requires precise alignment and assembly to ensure optimal performance. Maintenance includes regular lubrication and inspection for wear or damage. SCHNEEBERGER offers comprehensive instructions and training on installation and maintenance.

What advantages do cross-roller guides offer compared to other linear guide systems?

Cross-roller guides offer excellent rigidity, high load capacity, minimal deflection, and high precision. They are ideal for applications that require high loads and precision, such as machine tools, robots, measurement technology, etc.

What is the difference between the Type R, RN, and RNG cross-roller guides from SCHNEEBERGER? //

The Type R, RN, and RNG cross-roller guides refer to different raceways, load capacities, and stiffness levels of the linear guides from Schneeberger:

R: The Type R cross-roller guide represents the standard linear guides, available in various sizes and designs. The cage of the cross-roller guide can be equipped with rollers or balls. The Type R cross-roller guide is designed for a wide range of applications.
RN: The Type RN cross-roller guide refers to linear guides designed for higher load capacities and offers the option of forced cage guidance. The RN cross-roller guide has the same external dimensions as the R cross-roller guide.
RNG: This designation refers to linear guides that cover the same configurations and options as the RN linear guides but have a smaller cross-section than the RN and R cross-roller guides

Which applications benefit most from SCHNEEBERGERs various R, RN, RNG products? //

The various product families from Schneeberger Lineartechnik were developed to meet the requirements of a wide range of applications:

R linear guides are versatile and are used in a wide range of industries. Cages with balls and rollers are available for this type of linear guide.
RN linear guides offer higher rigidity and load capacity and are well-suited for machine tools and precision applications required in the semiconductor, measurement, and medical technology sectors.
RNG linear guides are used where compact installation space, lightweight design, high rigidity, and precision are all required.

How are cross-roller guides installed and maintained? //

What advantages do cross-roller guides offer compared to other linear guide systems? //